1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (c) 2016, NVIDIA CORPORATION.
11 #include <reset-uclass.h>
12 #include <asm/arch-tegra/bpmp_abi.h>
14 static int tegra186_reset_request(struct reset_ctl *reset_ctl)
16 debug("%s(reset_ctl=%p) (dev=%p, id=%lu)\n", __func__, reset_ctl,
17 reset_ctl->dev, reset_ctl->id);
22 static int tegra186_reset_free(struct reset_ctl *reset_ctl)
24 debug("%s(reset_ctl=%p) (dev=%p, id=%lu)\n", __func__, reset_ctl,
25 reset_ctl->dev, reset_ctl->id);
30 static int tegra186_reset_common(struct reset_ctl *reset_ctl,
31 enum mrq_reset_commands cmd)
33 struct mrq_reset_request req;
37 req.reset_id = reset_ctl->id;
39 ret = misc_call(reset_ctl->dev->parent, MRQ_RESET, &req, sizeof(req),
47 static int tegra186_reset_assert(struct reset_ctl *reset_ctl)
49 debug("%s(reset_ctl=%p) (dev=%p, id=%lu)\n", __func__, reset_ctl,
50 reset_ctl->dev, reset_ctl->id);
52 return tegra186_reset_common(reset_ctl, CMD_RESET_ASSERT);
55 static int tegra186_reset_deassert(struct reset_ctl *reset_ctl)
57 debug("%s(reset_ctl=%p) (dev=%p, id=%lu)\n", __func__, reset_ctl,
58 reset_ctl->dev, reset_ctl->id);
60 return tegra186_reset_common(reset_ctl, CMD_RESET_DEASSERT);
63 struct reset_ops tegra186_reset_ops = {
64 .request = tegra186_reset_request,
65 .rfree = tegra186_reset_free,
66 .rst_assert = tegra186_reset_assert,
67 .rst_deassert = tegra186_reset_deassert,
70 static int tegra186_reset_probe(struct udevice *dev)
72 debug("%s(dev=%p)\n", __func__, dev);
77 U_BOOT_DRIVER(tegra186_reset) = {
78 .name = "tegra186_reset",
80 .probe = tegra186_reset_probe,
81 .ops = &tegra186_reset_ops,